From: Jeffle Xu <jefflexu@linux.alibaba.com>
To: dhowells@redhat.com, linux-cachefs@redhat.com, xiang@kernel.org,
chao@kernel.org, linux-erofs@lists.ozlabs.org
Cc: linux-fsdevel@vger.kernel.org, joseph.qi@linux.alibaba.com,
bo.liu@linux.alibaba.com, tao.peng@linux.alibaba.com,
gerry@linux.alibaba.com, eguan@linux.alibaba.com,
linux-kernel@vger.kernel.org
Subject: [PATCH v1 23/23] erofs: support on demand read
Date: Mon, 27 Dec 2021 20:54:44 +0800 [thread overview]
Message-ID: <20211227125444.21187-24-jefflexu@linux.alibaba.com> (raw)
In-Reply-To: <20211227125444.21187-1-jefflexu@linux.alibaba.com>
Implement .issue_op() callback to support demand reading.
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
---
fs/erofs/fscache.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/fs/erofs/fscache.c b/fs/erofs/fscache.c
index 7d4f6682e521..bd64dbe1b0be 100644
--- a/fs/erofs/fscache.c
+++ b/fs/erofs/fscache.c
@@ -18,13 +18,7 @@ static void erofs_priv_cleanup(struct address_space *mapping, void *netfs_priv)
static void erofs_issue_op(struct netfs_read_subrequest *subreq)
{
- /*
- * TODO: implement demand-read logic later.
- * We rely on user daemon to prepare blob files under corresponding
- * directory, and we can reach here if blob files don't exist.
- */
-
- netfs_subreq_terminated(subreq, -EOPNOTSUPP, false);
+ netfs_demand_read(subreq);
}
const struct netfs_read_request_ops erofs_req_ops = {
--
2.27.0
prev parent reply other threads:[~2021-12-27 12:55 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-27 12:54 [PATCH v1 00/23] fscache,erofs: fscache-based demand-read semantics Jeffle Xu
2021-12-27 12:54 ` [PATCH v1 01/23] cachefiles: add cachefiles_demand devnode Jeffle Xu
2021-12-28 2:47 ` Joseph Qi
2021-12-28 12:34 ` JeffleXu
2021-12-27 12:54 ` [PATCH v1 02/23] cachefiles: add mode command to distinguish modes Jeffle Xu
2021-12-27 12:54 ` [PATCH v1 03/23] cachefiles: detect backing file size in demand-read mode Jeffle Xu
2021-12-27 12:54 ` [PATCH v1 04/23] netfs: make ops->init_rreq() optional Jeffle Xu
2021-12-27 12:54 ` [PATCH v1 05/23] netfs: add inode parameter to netfs_alloc_read_request() Jeffle Xu
2022-01-04 14:00 ` Gao Xiang
2022-01-13 3:10 ` [Linux-cachefs] " JeffleXu
2022-01-13 12:09 ` Gao Xiang
2021-12-27 12:54 ` [PATCH v1 06/23] erofs: export erofs_map_blocks() Jeffle Xu
2021-12-27 12:54 ` [PATCH v1 07/23] erofs: add nodev mode Jeffle Xu
2022-01-04 14:33 ` Gao Xiang
2022-01-04 14:58 ` Gao Xiang
2022-01-05 9:04 ` JeffleXu
2021-12-27 12:54 ` [PATCH v1 08/23] erofs: register global fscache volume Jeffle Xu
2021-12-27 12:54 ` [PATCH v1 09/23] erofs: add cookie context helper functions Jeffle Xu
2021-12-27 12:54 ` [PATCH v1 10/23] erofs: add anonymous inode managing page cache of blob file Jeffle Xu
2021-12-27 12:54 ` [PATCH v1 11/23] erofs: register cookie context for bootstrap Jeffle Xu
2021-12-27 12:54 ` [PATCH v1 12/23] erofs: implement fscache-based metadata read Jeffle Xu
2021-12-27 12:54 ` [PATCH v1 13/23] erofs: implement fscache-based data read Jeffle Xu
2022-01-03 6:32 ` JeffleXu
2022-01-04 14:40 ` Gao Xiang
2022-01-05 2:29 ` JeffleXu
2021-12-27 12:54 ` [PATCH v1 14/23] erofs: register cookie context for data blobs Jeffle Xu
2021-12-27 12:54 ` [PATCH v1 15/23] erofs: implement fscache-based data read " Jeffle Xu
2021-12-27 12:54 ` [PATCH v1 16/23] erofs: add 'uuid' mount option Jeffle Xu
2021-12-27 12:54 ` [PATCH v1 17/23] netfs: support on demand read Jeffle Xu
2021-12-27 12:54 ` [PATCH v1 18/23] cachefiles: use idr tree managing pending " Jeffle Xu
2021-12-27 12:54 ` [PATCH v1 19/23] cachefiles: implement .demand_read() for " Jeffle Xu
2021-12-27 15:36 ` Matthew Wilcox
2021-12-28 12:33 ` JeffleXu
2022-01-12 9:02 ` JeffleXu
2022-01-19 13:20 ` Matthew Wilcox
2022-01-20 12:43 ` JeffleXu
2021-12-27 12:54 ` [PATCH v1 20/23] cachefiles: implement .poll() " Jeffle Xu
2021-12-27 12:54 ` [PATCH v1 21/23] cachefiles: implement .read() " Jeffle Xu
2021-12-27 12:54 ` [PATCH v1 22/23] cachefiles: add done command " Jeffle Xu
2021-12-27 12:54 ` Jeffle Xu [this message]
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